Transcription of BIOSTATISTICS – MULTIPLE CHOICE QUESTIONS (Correct …
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BIOSTATISTICS – MULTIPLE CHOICE QUESTIONS (Correct …
BIOSTATISTICS MULTIPLE CHOICE QUESTIONS (Correct answers in bold letters) 1. The stages of a malignant disease (cancer) is recorded using the symbols 0, I, II, III, IV. We say that the scale used is: A. Alphanumeric B. Numerical C. Ordinal D. Nominal 2. The fundamental statistical indicators are: A. Mean B. Median C. Variance D. Standard deviation 3. The average of a series of numerical values is: A. The sum of the values divided by their number B. Lower than the minimum value in the series C. Lower than the maximum value in the series D. An indicator of central tendency for the values of the series 4. Standard deviation: A. is the square root of variance B is measured using the unit of the variable C. is measured using the squared unit of the variable D. has values generally comparable with the average value 5. If the average of a series of values is 10 and their variance is 4, then the coefficient of variation (= the ratio standard deviation / average) is: *Standard deviation is square root of variance 4 = 2, so the coefficient of variation is 2/10= 6.
BIOSTATISTICS – MULTIPLE CHOICE QUESTIONS (Correct answers in bold letters) 1. The stages of a malignant disease (cancer) is recorded using the symbols 0, I, II, III, IV. We say that the scale used is: A. Alphanumeric . B. Numerical . C. Ordinal . D. Nominal . 2. The fundamental statistical indicators are: A. Mean . B. Median . C. Variance
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